Pencils
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40 free Pencils trivia questions with answers — trivia quiz, new questions added Oct 2026.
The pencil looks like the simplest tool on the desk, yet its story runs through guarded mines, wartime blockades, spy gadgets and the first nuclear reactor. Even its most familiar nickname rests on a centuries-old mistake. This quiz covers the whole story: where graphite came from and what it is, how the grading scale and the No. 2 work, who invented the modern core and the eraser tip, the brands collectors chase, and the writers who would not work without a favourite pencil. It is pitched for curious players, teachers planning a classroom round and stationery fans alike. Every answer comes with a short explanation, so you will finish knowing why pencils are painted the way they are and what graphite does far from paper.
30 of 40 questions with answers and explanations. Play the quiz
Q 01Graphite was first mistaken for an ore of which metal, a mix-up that still names the pencil's core?
Lead
Lead was the best guess of sixteenth-century miners, who called the mineral plumbago, Latin for the metal's ore. No pencil core has ever contained any of it.
Q 02Which Japanese electronics firm is named after a mechanical pencil Tokuji Hayakawa invented in 1915?
Sharp
Sharp takes its name from the Ever-Ready Sharp pencil; after the 1923 Great Kanto earthquake destroyed the pencil business, the company turned to making radios.
Q 03Which everyday food lifted pencil marks off paper before purpose-made erasers appeared in 1770?
Bread
Bread without its crust was a common pencil eraser, and Tokyo students in the Meiji era were still being handed it for the job.
Q 04Charles Fraser-Smith, a wartime gadget maker linked to James Bond's Q, hid what inside pencils?
Maps
Maps tucked into pencils were among the secret devices Fraser-Smith built for British agents in occupied Europe, along with steel shoelaces that doubled as saws.
Q 05Which colour did the luxury Koh-i-Noor pencil make famous, prompting American rivals to copy it?
Yellow
Yellow made the Koh-i-Noor stand out when most pencils were dark or unpainted, so competitors borrowed the colour to suggest the same quality.
Q 06Which children's author was buried with his snooker cues, burgundy, chocolates and pencils?
Roald Dahl
Roald Dahl's family gave him what his granddaughter called a sort of Viking funeral, and children have left toys and flowers at his grave ever since.
Q 07Which Concord writer improved his family's pencils by binding poor local graphite with clay?
Henry David Thoreau
Henry David Thoreau kept working in the family pencil factory beside his writing for most of his adult life, later switching it to supplying graphite for printers.
Q 08Which material, sold in 1770 London as costly half-inch cubes, is named for wiping out pencil marks?
Rubber
Rubber was simply a word for anything used for rubbing until the 1770s, when it stuck to the new material that cleaned pencil marks off paper.
Q 09What did locals in England's Borrowdale valley first use graphite for, long before pencils existed?
Marking sheep
Marking sheep was the first job found for the pure black mineral, which was so solid that it could simply be sawn into sticks.
Q 10Which industrial giant shares its name and emblem with an unrelated pencil maker founded in 1887?
Mitsubishi
Mitsubishi Pencil, the company behind Uni-ball pens, began as Masaki Pencil in Tokyo and has never been part of the famous industrial group.
Q 11Which grade on the European pencil scale matches the American No. 2 used for school tests?
HB
HB is the standard writing grade, sitting between the hard H pencils engineers prefer and the soft B pencils artists use for dark shading.
Q 12European pencil grades pair the letter H for hardness with a B that is commonly taken to mean what?
Blackness
Blackness is the usual reading, since softer B cores carry less clay and mark darker, though Koh-i-Noor claims the letter honours its home city of Budějovice.
Q 13Pencil graphite is a crystalline form of which chemical element, also the basis of coal?
Carbon
Carbon atoms in graphite sit in stacked sheets held by weak bonds, so whole layers glide off onto the paper as a pencil moves.
Q 21The first nuclear reactor stacked 45,000 graphite blocks in 1942 to slow down which particles?
Neutrons
Neutrons slowed by graphite are far more likely to split uranium, and Germany's rival project stalled partly because its scientists wrongly ruled the material out.
Q 22Which household item did Andre Geim and Konstantin Novoselov use to isolate graphene from graphite?
Adhesive tape
Adhesive tape pressed onto graphite and pulled off again thinned the flakes to a single layer of atoms, work that won the pair the 2010 Nobel Prize in Physics.
Q 23IBM's 1937 test-scoring machine read pencil marks on answer sheets because graphite can do what?
Conduct electricity
Q 14Graphite's name, coined by Abraham Werner in 1789, comes from the word for write in which language?
Greek
Greek graphein, to write or draw, gave Werner his name for the mineral, replacing older labels that wrongly tied it to a metal.
Q 15The flat body of a carpenter's pencil stops it from doing what on a job site?
Rolling away
Rolling away is prevented by the flat sides, which also work as a quick ruler because the body is cut to common quarter- and half-inch widths.
Q 16Powdered graphite, the mineral in pencil cores, is sold to locksmiths and machinists as a dry what?
Lubricant
Lubricant is graphite's other career: it keeps working at very high or very low temperatures, so it is used on forging dies and mining gears as well as locks.
Q 17Graphite, the mineral in pencil cores, forms the anode in which widely used battery type?
Lithium-ion
Lithium-ion cells rely on graphite because its layers can take in and release the ions without swelling apart, charge after charge.
Q 18Which German firm, founded in Stein in 1761, paints its pencils green after a count's army regiment?
Faber-Castell
Faber-Castell got its double name in 1898, when the founding family's heiress Ottilie married Count Alexander zu Castell-Rüdenhausen.
Q 19The Koh-i-Noor pencil Hardtmuth showed at the 1889 Paris World Fair is named after a famous what?
Diamond
Diamond glamour was the point: the Koh-i-Noor stone, whose Persian name means Mountain of Light, sits among the British Crown Jewels.
Q 20Non-photo pencils draw sketch lines that graphic arts camera film cannot detect in which colour?
Blue
Blue of one pale shade was invisible to the film used in printing, so artists could rough out a page and ink over it with no need to erase.
To conduct electricity was the trick: wire brushes swept the sheet and a filled-in answer completed the circuit. Later scanners sensed light instead.
Q 24What is the metal band called that holds the eraser on a pencil and the bristles on a paintbrush?
Ferrule
Ferrule comes from the Latin for a small bracelet, its spelling bent over time by ferrum, the word for iron.
Q 25Which French inventor created the modern pencil core after a blockade cut off English graphite?
Nicolas-Jacques Conté
Nicolas-Jacques Conté needed only days to hit on firing powdered graphite with clay, and the artists' crayons he also devised still carry his name.
Q 26England's Crown guarded the Borrowdale graphite mines because the mineral lined moulds for what?
Cannonballs
Cannonballs cast in graphite-lined moulds came out rounder and smoother and flew farther, so the mines were flooded between digs to stop thieves.
Q 27Which conifer, dyed to pass for the scarce old favourite, became the standard pencil wood?
Incense cedar
Incense cedar from California and Oregon took over once the eastern red variety grew so scarce that pencil makers were recycling old fences and barns.
Q 28Swiss firm Caran d'Ache borrowed a cartoonist's pen name that means pencil in which language?
Russian
Russian karandash was the pen name of Paris cartoonist Emmanuel Poiré, and the Geneva firm adopted it in 1924 when a new owner took over.
Q 29Which tool did astronauts and cosmonauts both use on plastic slates before buying space pens?
Grease pencils
Grease pencils have no moving parts and a paper wrap that simply peels back, while snapped graphite tips and dust were a hazard to electronics in zero gravity.
Q 30Ticonderoga pencils are named after a town in which US state, where graphite ore was found in 1815?
New York
New York's Ticonderoga, better known for its Revolutionary War fort, sat near graphite deposits that Joseph Dixon's company later mined for its pencils.